NTFSDOS were three kinds of programs by Winternals (later bought by

Microsoft Microsoft Corporation is an American multinational corporation and technology company, technology conglomerate headquartered in Redmond, Washington. Founded in 1975, the company became influential in the History of personal computers#The ear ...

) for DOS that could handle

NTFS NT File System (NTFS) (commonly called ''New Technology File System'') is a proprietary journaling file system developed by Microsoft in the 1990s. It was developed to overcome scalability, security and other limitations with File Allocation Tabl ...

formatted drives.

Programs

Basic

The first program was NTFSDOS - a freeware utility for DOS (''NTFSDOS.EXE'') that allows read-only access to NTFS formatted drives from a DOS environment.

Tools

The second program was NTFSDOS Tools - an add-on package for NTFSDOS that contains two commercial utilities for DOS - NTFSCopy and NTFSRen. The former (''NTFSCOPY.EXE'') could be used to overwrite corrupt files with fresh versions. The latter (''NTFSREN.EXE'') could be used to change the names of bad drivers so Windows could not load them.

Professional

The final program was NTFSDOS Professional - a whole commercial solution for handling read and write operations in NTFS from a DOS environment. It must be installed as a package for

Microsoft Windows Windows is a Product lining, product line of Proprietary software, proprietary graphical user interface, graphical operating systems developed and marketed by Microsoft. It is grouped into families and subfamilies that cater to particular sec ...

first. The downloaded version comes in

demoware Shareware is a type of proprietary software that is initially shared by the owner for trial use at little or no cost. Often the software has limited functionality or incomplete documentation until the user sends payment to the software developer. ...

form. The user can only use the package in read-only mode in order to evaluate it.

Discontinuation

Winternals was acquired by Microsoft on July 18, 2006, which discontinued NTFSDOS.

References

DOS software {{DOS-stub